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I've tried a windows PC, same result. I've also tried using an extension cable and no, it doesn't work even when it's out of bootloader mode. The code seems to work well, it just doesn't show up as a serial port on both computers.
I've hooked up a usb-serial converter to the UART1 pins on my Pico and while it shows output(I had a program on it that spit out a string when I pressed a button), I can't type anything to it. However the '>' prompt still shows.

Hey y'all,
I've plugged in my espruino pico with BTN1 held down, but both LEDs light up and don't play the fading animation. I've tried everything in the troubleshooting section, as well as resetting my Macbook's USB ports. The code I put in last still works, so I think it's a USB problem, but other devices work perfectly on my Macbook.
This all happened after i successfully reflashed my Espruino Pico and save()ed a program on it. Everything worked great until after about an hour or so.

Help!

Nothing special, I just wanted to brag a bit :) feedback is welcome!
Assembly and testing is all done, I now need to program it!

Title says all.
I keep getting errors that say "setNew interpreter error: LOW_MEMORY,MEMORY."
I'm assuming it means my Espruino Pico is out of RAM but then again, my code is only 13 lines.

function pause(){}

while (1) {
  digitalWrite(A4, 0);
  setTimeout('pause()', 20);
  digitalWrite(B4, 1);
  digitalWrite(B3, 0);
  setTimeout('pause()', 20);
  digitalWrite(A4, 1);
  digitalWrite(B4, 0);
  setTimeout('pause()', 20);
  digitalWrite(B3, 1);
}

Please help!

If I make the LEDs turn on only when a button is pressed, how much will it improve the battery life?
I also heard that the moment an LED lights up it sucks a ton of power for a fraction of a second and then stabilizes. is it true?

Hey guys,
I'm making a very power-critical project(a wristwatch) and I want to get the most battery life from the smallest battery.
I have an Espruino Pico, two 16 segment LED displays, 4 SMD leds(2 on the pico 2 on the pcb), 5 tactile switches, and 220 ohm resistors for every LED, including those on the 7-segment display.
I've roughly estimated the total power requirement to be about 100mah. However, other similar diy watch kits I've seen on the web like https://www.sparkfun.com/products/11734 gets a full TWO YEARS from a single coin cell! Am I doing something wrong? I too would like to get several years of power from a coin cell.

Thanks!

I'm using the Pico.

Hey,
I have a very battery-critical project and I want to save energy by dimming a few LEDs whenever I can.
If I use analogWrite() to light the LEDS at half brightness, will it reduce power usage?
What about using a potentiometer?

That's awesome! It's amazing how much effort and dedication you put into each and every board...
Cool how the Espruino Pico has everything from native USB to battery switchover to a button and two LEDs, it's mind blowing.

Hey guys,
What happens if I have a battery connected to the Vin and GND of my Espruino Pico and then connect it to a USB port? Will I burn my Pico, or is it safe to do so?

Thanks!

Oh my gosh! That's awesome! :)

Hey guys, I was rooting through the firmware and I found this!

[#if](https://forum.espruino.com/search/?q=%23if) !defined(PICO) && !defined(ESPRUINOBOARD) && !defined(ESPRUINOWIFI) && !defined(PUCKJS) && !defined(PIXLJS)
          "\n"
          "Espruino is Open Source. Our work is supported\n"
          "only by sales of official boards and donations:\n"
          "http://espruino.com/Donate\n"
[#endif](https://forum.espruino.com/search/?q=%23endif)

It is line 832 at Espruino/src/jsinteractive.c on the Espruino firmware Github page. Look at the first two lines.
hopefully the Pixl JS is an upcoming new board?

Hi,
I'm thinking of buying a puck.js and I read on the kickstarter page that it can connect to the internet.
How so? Does it connect to the internet via bluetooth?
kinda like this:

PUCK --bluetooth--> COMPUTER --wifi--> INTERNET
PUCK <--bluetooth-- COMPUTER <--wifi-- INTERNET

is this correct?

Thanks!

Thanks! But how do I address the IO pins? The pin labels are different with every board... Like, for example, pin 3 on the raspberry pi can't be the same as pin 3 on the chip pro, since they use different processors.

Hi,
can espruino be ported to the chip pro?
here: https://getchip.com/pages/chippro
it's a super cheap arm dev kit and I'm planning to use it for my dorm automation project.
While you can use bash scripts to control IO pins, I think Espruino would be much easier.

Hi,
Could the Espruino be used for penetration testing?
Something like Javascript injection? Wireless JS attacks?
I think the Espruino WiFi could be capable of this.
Also, can the espruino share internet from the host computer? If so, the original and the pico will be able to get internet access too!
I know, there are other ways to perform JS attacks but it just came up to me, and the small form factor of the Pico can potentially make it a USB rubber ducky, but for the internet! Plug it in, and inject lines of Javascript to any server!

Hi,
I would like to send commands over to my espruino via serial.
I think this is the way:

echo 'digitalWrite(LED1, 1) < /dev/tty.usbmodem1421

However, it doesn't do anything. My terminal shows me no feedback whatsoever, even if I press enter or ctrl+c.
Am I doing something wrong?
I have to do it over serial; I can't have my board connected with a prompt always on because I have this home automation project for my dorm and I would like to send serial commands wirelessly with bluetooth, and the espruino's going to be stuck somewhere on the wall.

Thanks!

Your plans for the new board is really cool, I guarantee it will be very successful!
Congrats on your baby also, keep up the awesome work!

Hi,
is there any way to see the espruino boot log? Kind of like dmesg in linux?

thanks!

Oh, I think a grove connector will be very handy. I don't think it will be difficult to implement, either.

Yes, the audio jack fits in the prototype area(although I also stole the gnd bat and 3.3v holes)!
It's good to hear the audio jack might be possible.

I know my suggestions might not be featured, but will there be additional boards coming out(or upgrades of original ones)?

Hi,
I was looking at my parts bin and found two components: an audio jack and a usb port. That got me thinking wow i wish the espruino had a usb host port and an audio jack. It would be awesome! You would be able to play sound files off the micro sd with the DAC and also connect devices like usb sticks. What do you think? I also took some concept pictures.
(don't worry this is a bricked espruino it doesnt work anyway)

Thanks again!
Yes you're right, the HC-06 doesn't support master mode.

Thank you! I'll adopt an Espruino Original and take good care of it :D

Yeah, thanks!
So the original board can act as a master and a slave? because that's basically all I need.
Also, I heard about the new 1.8 update on the firmware(I know, I'm 2 years late to the party ahaha), the built-in debugger and software PWM on all pins really attracted me. Are both of those functions available on the original board?

Thanks!

Hi, sorry I'm late to the party.
Is the software PWM and the debugger available for the original espruino board too?

Thanks!